Update 1: President Maduro addressed the nation on state-owned television, urging his supporters to revolt if he is harmed and telling Trump "Yankee, go home!" Headlines from the speech include (via Bloomberg):

*VENEZUELA'S MADURO SAYS HE WILL HOLD POWER FOR MANY YEARS

*VENEZUELA'S MADURO SAYS HE'S NO 'PUPPET OF THE EMPIRE'

*VENEZUELA'S MADURO: TRUMP, DUQUE DON'T DECIDE FOR VENEZUELANS

*MADURO: VENEZUELANS ARE DEFEATING U.S. COUP ATTEMPT

*MADURO: GUAIDO SHOULD CALL ELECTIONS IF HE IS PRESIDENT

*MADURO: PROTESTERS INCITING VIOLENCE ARE GOING TO PRISON

*VENEZUELA'S MADURO SAYS HE WILL GUARANTEE SECURITY ON BORDER

*VENEZUELA'S MADURO: GOVT HAS PLANS FOR ALL POSSIBLE SCENARIOS

*VENEZUELA'S MADURO TELLS PRESIDENT TRUMP: 'YANKEE GO HOME'

*VENEZUELA MADURO CALLS ON SUPPORTERS TO REVOLT IF HE IS HARMED

*VENEZUELANS SHOULD RESOLVE OWN PROBLEMS, MADURO SAYS

*VENEZUELAN HUMANITARIAN AID SEEKS U.S. INVASION, MADURO SAYS

President Trump has been quiet so far on Twitter, offering just this earlier today: